U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 31, 2025

All TitlesTitle 40Chapter IPart 63Subpart LLL - Subpart LLL—National Emission Standards for Hazardous Air Pollutants From the Portland Cement Manufacturing Industry

GENERAL
§ 63.1340 - What parts of my plant does this subpart cover?
§ 63.1341 - Definitions.

EMISSION STANDARDS AND OPERATING LIMITS
§ 63.1342 - Standards: General.
§ 63.1343 - What standards apply to my kilns, clinker coolers, raw material dryers, and open clinker storage piles?
§ 63.1344 - [Reserved]
§ 63.1345 - Emissions limits for affected sources other than kilns; clinker coolers; new and reconstructed raw material dryers.
§ 63.1346 - Operating limits for kilns.
§ 63.1347 - Operation and maintenance plan requirements.
§ 63.1348 - Compliance requirements.

MONITORING AND COMPLIANCE PROVISIONS
§ 63.1349 - Performance testing requirements.
§ 63.1350 - Monitoring requirements.
§ 63.1351 - Compliance dates.
§ 63.1352 - Additional test methods.

NOTIFICATION, REPORTING AND RECORDKEEPING
§ 63.1353 - Notification requirements.
§ 63.1354 - Reporting requirements.
§ 63.1355 - Recordkeeping requirements.

OTHER
§ 63.1356 - Sources with multiple emissions limit or monitoring requirements.
§ 63.1357 - [Reserved]
§ 63.1358 - Implementation and enforcement.
§ 63.1359 - [Reserved]
Appendix - Table 1 to Subpart LLL of Part 63—Applicability of General Provisions
Appendix - Table 2 to Subpart LLL of Part 63—1989 Toxic Equivalency Factors (TEFs)
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